High X-ray-to-optical flux ratio sources from RASS.

Details High X-ray-to-optical flux ratio sources from RASS. High X-ray-to-optical flux ratio sources from RASS.

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999pyuno....s.311x&link_type=abstract

Publications of the Yunnan Observatory, Suppl. 1999, p. 311 - 313

Physics

X-Ray Sources: Identification, Active Galactic Nuclei: X-Ray Sources

Scientific paper

The authors present the first results of a program to identify the unknown bright active galactic nuclei (AGN) in the ROSAT All Sky Survey Bright Source Catalog. A high X-ray-to-optical flux ratio criterion has been used to select an AGN sample with 165 unidentified X-ray sources for optical spectroscopy. At present over 93% of the X-ray sources in the sample have been fully identified in the following classes; emission line AGNs, clusters of galaxies, BL Lacertae objects, and stars.

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